The Arbor Day Foundation Provides resources for the nationally-celebrated observance that encourages tree planting and tree care. http://www.arborday.org/

Arbor Day The history of the observance with information about international "tree" celebrations. Find out when each U.S. state celebrates Arbor Day. http://www.arbor-day.net/

The History of Arbor Day Explains how the idea of Arbor Day was born out of the settlement of Nebraska's treeless plains. http://www.gardengrove.com/treehist.htm

Annie's Arbor Day Provides information about the holiday's history and includes Bible verses about trees. http://www.annieshomepage.com/arborday.html

Arbor Day Celebration 2000 Features trivia quiz, scavenger hunt suggestions, historical information, and tips for tree planters. http://www.idahoforests.org/feature.htm

Arbor Day - Day of Trees Tells about Arbor Day in Australia. http://www.calm.wa.gov.au/forest_facts/arbor_day.html

Arbor Day at Holiday Insights Facts and information, links to ecards, and clipart. http://holidayinsights.com/other/arbor.htm

Arbor Day in the USA Includes background information, poetry, quotations, and ideas for celebrating the holiday as a family. http://www.jeannepasero.com/arborday.html

Arbor Day Features timetable of the holiday's development. From Ohio Division of Forestry. http://www.dnr.state.oh.us/htdocs/forestry/education/infoarbor.htm

Indiana Arbor Day Includes information on Arbor Day programs, the history of the observance, celebration ideas for cities and towns, tree planting instructions and links to educational resources. http://www.state.in.us/dnr/forestry/education/arborday/

Sadie Hawkins Day History of Sadie Hawkins Day as celebrated at Morris Harvey College (West Virginia). http://www.ucwv.edu/library/sadie.html